(a) DISTANCE BETWEEN PRINCIPAL BUILDINGS ON SAME LOT. In non- residential districts, no detached principal building shall be located closer to any other principal building on the same lot than the height of the taller of said buildings.
(b) NUMBER OF BUILDINGS RESTRICTED.
(1) In any residential district, except as otherwise specifically provided by this chapter, there shall be no more than one principal structure or use and its accessory structures or uses on any one lot.
(2) In any non-residential district, more than one principal structure may be permitted, provided that yard and other requirements of this Zoning Ordinance shall be met for each structure as though it were on an individual lot.
(3) See also Section 1331.11.